201000022101021 has 32 divisors (see below), whose sum is σ = 314857802810880. Its totient is φ = 112445914334400.

The previous prime is 201000022101007. The next prime is 201000022101101. The reversal of 201000022101021 is 120101220000102.

It is not a de Polignac number, because 201000022101021 - 2¹⁰ = 201000022099997 is a prime.

It is a super-2 number, since 2×201000022101021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201000022100988 and 201000022101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000022108021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26119266 + ... + 32927436.

It is an arithmetic number, because the mean of its divisors is an integer number (9839306337840).

Almost surely, 2^{201000022101021} is an apocalyptic number.

It is an amenable number.

201000022101021 is a deficient number, since it is larger than the sum of its proper divisors (113857780709859).

201000022101021 is a wasteful number, since it uses less digits than its factorization.

201000022101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877017.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201000022101021 its reverse (120101220000102), we get a palindrome (321101242101123).

The spelling of 201000022101021 in words is "two hundred one trillion, twenty-two million, one hundred one thousand, twenty-one".